Warp stop-motion for narrow-ware looms.



No. 695,98l. Patented Mar. 25, I902.

F. B. WILKINS. WARP STOP MOTION FOR NARROW WARE LOOIVIS.

(Application filed Nov. 22, 1901.)

2 Sheets-Sheet I.

(No Model.)

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whim a? v Attorneys m: mm:

:s PETERS co. PHOYO-LIYHOY, WASHINOYON. n. c,

WARP STOP MOTION FOR NARROW WARE LOOMS.

(Application filed Nov. 22, 1901.) (No Model.)

2 Sheets-Sheet 2.

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f I I I Witnesse. Inventor.

W 7 WW1 j Attorney' NlTED STATES PATENT OFFICE.

FRED n. WILKIN's, oF wooNsooKE'r, RHODE ISLAND.

WARP STOP-MOTION FOR NARROW-WARE LOOMS.

SPECIFICATION forming part of Letters Patent No. 695,981, dated March 25, 1902. Application filed November 22, 1901. Serial No. 83,263. (No model.)

To all whom it may concern.-

Be it known that I, FRED B. WILKINS,L1'eSident of the city of XVoonsocket, in the county of Providence and State of Rhode Island have invented certain new and useful Improvements in WVarp Stop-Motions for Narrow- WVare Looms; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to the warp stop-motion for narrow-ware fabric or common wide single-web looms. Its object is to provide a stop-motion to be operated by the warp at the back of the loom with an improved method of connecting the same with the belt-shipper at the front of the loom. It is fully described and illustrated in this specification and the annexed drawings.

Figure 1 represents the end view of a loom with the near end frame removed. Fig. 2 showsa back view of the two swinging frames of the stop-motion. Fig. 3 is an outside view of two of the arms that hold the swinging frames. Fig. at shows one of the drop-wires.

The construction and operation of the im provement are as follows:

S represents the farther frame, A the warpbeam, B the warp-threads, which run from the warp-beam A down under the lower roll T, then up over the two rolls 0 c and down under the roll V, and from thence through the lease-rods R, harnesses F, to the breastbeam D.

N is a lever held to rock on a pivot L, fast in the end frame of the loom, and extends across from front to back of the loom and connects the drop-motion on the back with the belt-shipper G near the front of the loom. A shaft 0, that extends across the back of the loom, has bearings at each end in the end frames of the loom. This shaft 0 has a rocking motion imparted to it by an eccentric-cam H, fast on the cam-shaft I, through the lever P, also pivoted to the end frame and connected at its lower end by the rod 1) to the cam H and at its upper end bya rod d to the arm E, fast on the shaft C. A fiat bar 0 is adjustably secured to the two arms E. (See Fig. 2.)

J J are swinging arms which are placed one at each end of the loom and held on studs K, fast in the end frames. (See Figs. 2 and 3.) Slots j j are made in the upper ends of the arms J to hold the bars Y, on which the healds that hold the drop-Wires (ta are strung, (see Fig. 1,) and at the lower ends three bars M M are held that extend from one arm J to the other, leaving space between the bars for the drop-wires to hang. A roll P is held on a stud \V in one of the arms J (see Figs. 2 and 8) to operate the lever N when the bar swings. The end of the lever N is held over the roll P and is bent down both sides of the roll, forming a double incline r, with the roll in the center, so that if it moves either way it will raise the end of lever N by one incline 0' or the other.

The front end of the leverN has a notch it made in it to retain the end of thebelt-shipper G and prevent it from being drawn over by its spring (not shown) and casting off the belt. A spiral spring m has one end attached to the lever N and the other end to the end attached to the end frame to keep the lever from being moved by the jar of the loom.

The operation is as follows: In Fig. 1 there are two sets of drop-wires a a shown. These are placed alternately to find room for them, and in weaving some fine goodsitis necessary to have three or more sets of the drop-wires. The warp-threads B in passing from one of the rolls 0 to the other roll pass through the eyes o o in the healds f, to which the dropwires a a are attached, and so long as the threads are intact they will hold the dropwires to up, so that their lower ends willnot be struck by the bar 0 as itvibrates'back and forth below them; but if one of the warpthreads breaks it will let down its drop-wire, as shown in the one representing the front set in Fig. 2, and the bar 0, striking the dropped wire, will cause the arm J to swing and the roll P to raise the end of the bar N by one of the inclines r, and the front end of the lever will be thrown down, as shown by the dotted lines, and release the shipper G, so it will cast off the belt and stop the loom.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. The combination of a warp stop-motion and having eyes to receive the warp-threads and loops to receive the bars on the swinging arms, a roll held on one of said swinging arms, a lever held on a pivot in the frame and extending from the front to the back of the loom, a double incline on the back end of said lever, a notch'in the front arm to hold the belt-shipper, substantially as described.

2. In a warp. stop-motion for looms, the combination of a series of drop-wires heldon bars on swinging arms, a roll held on one of said swinging arms, a lever pivoted on the end frame and having a double incline at one end to receive said roll and connected with the belt-shipper, a rocker-shaft held in bearings in the end frames, arms fast in said rocker-shaft and connected together by a bar, alever pivoted on said frame connected at its upper end with the arm on the rockershaft and its lower end with an eccentric-cam on the cam-shaft, and said eccentric, substantially as described.

In testimony whereof I have hereunto set my hand this 15th day of November, A. D. 1901.

FRED B. \VILKINS.

In presence of- BENJ. ARNOLD, HOWARD E. BARLow. 

